第一章 设计原始资料┅ ┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅3 1.1 .设计资料┅ ┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅3 1.1.1. 工程概况┅ ┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅3 1.1.2. 背景资料┅ ┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅3 1.2 .设计任务┅ ┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅3 1.3 .设计成果┅ ┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅3 第二章 各系统方案选择┅ ┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅4